Not necessarily, most internal walls would be armoured bulkheads in case of ruptures in the outer hull during combat with much bigger weapons than these popguns. Certainly the equipment and stuff would be fairly shootupable.

Ah, these diplomats! What chatterboxes! There's only one way to shut them up - cut them down with machine guns. Bulganin, go and get me one! - Joseph Stalin - As reported by De Gaulle during a long meeting.